Wednesday, June 20, 2012

Fate of large structural allograft for treatment of severe uncontained glenoid bone deficiency. JSES

Fate of large structural allograft for treatment of severe uncontained glenoid bone deficiency, published by JSES.

This Level IV case series shows the difficulty of managing the glenoid bone after a failed glenoid arthroplasty. The authors used large structural allografts (femoral heads) in an attempt to restore sufficient bone stock so that a glenoid component could be reinserted. Five of 18 such grafts healed sufficiently to allow subsequent glenoid arthroplasties.  On average 50% of the graft reabsorbed. When metal screws were used for fixation of the graft, screw failure was common. 

It can be concluded that this procedure is a consideration when glenoid component re-implantation is being considered as long as the risk of graft resorption is recognized.

Glenoid component failure is a serious problem. Our preference is to avoid bone grafts whenever possible as explained here.

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